DNA Polymerase (Pol I)

DNA polymerase I (or Pol I) is an enzyme that participates in the process of prokaryotic DNA replication. It catalyze the synthesis of polydeoxyribonucleotides from mono-deoxyribonucleoside triphosphates (dNTPs), performing the most fundamental functions in vivo of DNA replication, repair, and, in some cases, cell differentiation. 

DNA polymerases are a group of polymerases that catalyze the synthesis of polydeoxyribonucleotides from mono-deoxyribonucleoside triphosphates (dNTPs), performing the most fundamental functions in vivo of DNA replication, repair, and, in some cases, cell differentiation. In fact, different types of DNA polymerases have been found in a single organism, for example, three (DNA Pol I, II, and III) in E. coli or five (DNA Pol α, β, γ, δ, and ɛ) in higher eukaryotes.